发明名称 |
FREQUENCY MIXING CIRCUIT FOR SUPPRESSING LOCAL OSCILLATOR LEAKAGE THEREIN |
摘要 |
<p>Embodiments of the present invention disclose a frequency mixing circuit and a method for suppressing local oscillation leakage in the frequency mixing circuit, where a mixed input signal and a local oscillation signal are involved, and local oscillation leakage can be effectively reduced by using a frequency mixing circuit whose structure is simpler and is easier to be implemented. The frequency mixing circuit includes a direct current bias circuit, where the direct current bias circuit includes a direct current bias voltage source used for reducing a local oscillation current. The frequency mixing circuit is mainly applied to frequency mixing, and especially to a case where an intermediate frequency signal is mixed with a local oscillation signal to output a radio frequency signal.</p> |
申请公布号 |
EP2685629(A1) |
申请公布日期 |
2014.01.15 |
申请号 |
EP20120767408 |
申请日期 |
2012.03.13 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
CAI, HUA;SHUAI, SONGLIN;HE, JIA;ZHANG, YONG |
分类号 |
H03D7/14;H03D7/00;H03D7/18;H04B1/30 |
主分类号 |
H03D7/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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